While exploring city locations or other worlds, the investigators face random challenges and benefits.

At the Manhattan hospital where she made her living, investigators faced the question of how she might have caught the deadly sickness.

Great care is required to remain within the scope of the law, otherwise the investigator may face criminal charges.

Mr. Cherkasky said investigators in the bombing inquiry face the "same stone wall."

A private investigator faces danger as he helps a man search for his irresponsible missing brother.

Those investigators will face fewer legal obstacles than is sometimes assumed.

But investigators face a difficult task because each suicide is different and leaves a different imprint.

As of July, the investigators must be accompanied by state or federal police officers or face a felony prosecution.

Without one, investigators face a wall as blank as unexposed film.

Although task force members say that information is easy to come by on the streets, the investigators face a difficult problem.